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Device and method for power generation through coal gangue incineration coupled CFB boiler unit

A boiler unit and coal gangue technology, which is applied to combustion methods, incinerators, fuels burned in a molten state, etc., can solve the problems of low utilization rate of coal gangue solid waste, high solid waste treatment cost, and low mixing ratio. The effect of saving primary energy, reducing the burden of slag discharge and anti-wear, and reducing investment costs

Pending Publication Date: 2022-01-11
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problems to be solved by the present invention are: the utilization rate of coal gangue solid waste is low, the cost of solid waste treatment is high, energy consumption is high, the proportion of blended combustion is low, and new carbon emissions

Method used

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  • Device and method for power generation through coal gangue incineration coupled CFB boiler unit
  • Device and method for power generation through coal gangue incineration coupled CFB boiler unit
  • Device and method for power generation through coal gangue incineration coupled CFB boiler unit

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Embodiment

[0031] Such as Figure 1~3 As shown, in a preferred embodiment, the present invention provides a device for incinerating coal gangue coupled with a CFB boiler unit to generate electricity, including an incineration chamber 1, a separator 2 and a mixing air box 3, and the upper part of the incineration chamber 1 is connected by The flue 4 is connected to the separator 2, and the separator 2 is connected to the mixing air box 3 through the outlet flue 5, and the mixing air box 3 is provided with a flue gas inlet 6, a secondary air inlet 7 and a mixing air outlet 8. The secondary air inlet 7 is connected to the secondary air duct of the CFB boiler, the mixed air outlet 8 is connected to the mixed air duct, and the mixed air duct is connected to the CFB boiler unit.

[0032] Incineration chamber 1, the combustion-supporting primary air is passed into the incineration chamber 1, and the coal gangue solid waste is burned in the fluidized bed in the incineration chamber 1 to release ...

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Abstract

The invention provides a device and method for power generation through a coal gangue incineration coupled CFB boiler unit, and relates to the technical field of solid waste resourceful treatment. The device comprises an incineration chamber, a separator and a mixing air bellow, wherein coal gangue solid waste is combusted in the incineration chamber to release heat, the heat is transferred to flue gas, and after particles carried by the flue gas are separated out through the separator, the flue gas enters a mixed air box to heat secondary air of the CFB boiler unit, the heated secondary air couples heat emitted by the coal gangue solid waste and then enters the CFB boiler unit to generate power; a smoke treatment system does not need to be additionally arranged, so that the investment cost of coal gangue solid waste treatment is greatly reduced, and meanwhile, primary energy can be saved and carbon emission does not need to be additionally arranged.

Description

technical field [0001] The invention belongs to the technical field of solid waste resource treatment, and in particular relates to a device and method for generating electricity by incinerating coal gangue coupled with a CFB boiler unit. Background technique [0002] Coal gangue solid waste is the solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with the coal seam during the coal formation process. [0003] At present, the utilization of coal gangue solid waste in the market mainly includes blending burning, brick making, production of lightweight aggregate, cement production, etc., all of which have relatively strict requirements on the calorific value of coal gangue solid waste, usually requiring coal gangue solid waste The calorific value is above 1200kcal / kg, resulting in a lot of coal gangue solid waste with a calorific value below 1200kcal / kg that can...

Claims

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Application Information

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IPC IPC(8): F23G5/30F23G5/44F23G5/46F23C10/10F23C10/26F23C10/18F23L15/00
CPCF23G5/30F23G5/46F23G5/44F23C10/10F23C10/26F23C10/18F23L15/00F23G2206/203Y02E20/12Y02E20/34
Inventor 罗勇军高琴许秀启李琰洪勇
Owner SHANGHAI BOILER WORKS
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